Company lists · Data refreshed September 2026

Top 25 Energy infrastructure consulting firms based in Johannesburg, South Africa

Name: Energy infrastructure consulting firms based in Johannesburg, South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 91 companies tracked

RevenueBase identified 91 energy infrastructure consulting firms headquartered in Johannesburg, South Africa as of September 2026 and tracks 1,127 professional contacts across them, including 410 with verified work emails. Johannesburg is the largest hub.

This list covers energy infrastructure consulting firms headquartered in Johannesburg, South Africa, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

91Companies

1,127Contacts tracked

410Verified emails

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The 25 largest energy infrastructure consulting firms based in Johannesburg, South Africa

Ranked by team size

Top 25 of 91 energy infrastructure consulting firms based in Johannesburg, South Africa, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Consolidated Power Project PTY Ltd. In Business Rescue	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	1,001-5,000	254 contacts →
	Partial evidence “The CONCO Group is Africa’s largest power infrastructure service provider with three decades of Africa-wide experience in transmission, distribution and power infrastructure…” Source: RevenueBase Database · checked Sep 21, 2026
2	ABC Solar SA	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	201-500	122 contacts →
	Partial evidence “At ABC Solar, we do more than deliver solar infrastructure; we engineer certainty.” Source: RevenueBase Database · checked Sep 21, 2026
3	Trans-Africa Projects	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	51-200	103 contacts →
	Indirect evidence “Trans-Africa Projects, specialist in High Voltage Services was established in 1995 as a joint venture between Fluor and Eskom to commercially apply resources and expertise in…” Source: RevenueBase Database · checked Sep 21, 2026
4	Sebenzana APP	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	51-200	75 contacts →
	Indirect evidence “Maximise your power generation, oil and gas asset performance with evidence-based decision-making, through tried and tested services that leverage expertise and data analytics.” Source: RevenueBase Database · checked Sep 21, 2026
5	Syncsystems South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	32 contacts →
	Indirect evidence “SyncSystems is owned by professional engineers with broad industrial experience, including mining, petrochem, biotech and water treatment.” Source: RevenueBase Database · checked Sep 21, 2026
6	Journey2green	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	22 contacts →
	Partial evidence “Journey2Green see the decision to go Renewable Energy as a Journey and like any journey you plan for it with a start date, an end-destination and a route plan to get you there…” Source: RevenueBase Database · checked Sep 21, 2026
7	Ipes Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	21 contacts →
	Indirect evidence “Instrumented Process and Electrical Systems (IPES) was established as an independent engineering design house in 1988 in Johannesburg, South Africa.” Source: RevenueBase Database · checked Sep 21, 2026
8	Brundtland Consulting	Strong evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	1-10	19 contacts →
	Strong evidence “Brundtland Consulting is a South African management consulting firm specialized in climate change, green economy and renewable energy.” Source: RevenueBase Database · checked Sep 21, 2026
9	Optimult	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	18 contacts →
	Partial evidence “Optimult provides Consulting, EPC (Engineering, Procurement, Construction) and EPCM (Engineering, Procurement and Construction Management) services in a comprehensive range of…” Source: RevenueBase Database · checked Sep 21, 2026
10	Gridbow	Strong evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	16 contacts →
	Strong evidence “Gridbow is an Award Winning Electrical Infrastructure, Civil Engineering, Consulting, Maintenance and General Services Contracting Company.” Source: RevenueBase Database · checked Sep 21, 2026
11	Innovation Expand	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “We are a technically-led and solutions-orientated consultancy and we strive to empower you in the rapidly evolving world of electrical engineering.” Source: RevenueBase Database · checked Sep 21, 2026
12	Dhahabu Consulting	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “Dhahabu Consulting (Pty) continuously works to being the partner, service provider and employer of choice offering customised project management, project controls (quantity…” Source: RevenueBase Database · checked Sep 21, 2026
13	Zero Point Energy	Strong evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	14 contacts →
	Strong evidence “Established & operational since 2015, we are a proudly South African sustainable energy company providing professional engineering consulting, turn-key Engineering, Procurement &…” Source: RevenueBase Database · checked Sep 21, 2026
14	M Squared Power Generation	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
15	Rhythm Power Solutions PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	10 contacts →
	Indirect evidence “Our services- Full Self-Build and Own-Build Services- Network planning and master plans- System modelling and load flow simulations, network optimization, load forecasting…” Source: RevenueBase Database · checked Sep 21, 2026
16	Sigma Consulting Services	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “Sigma Consulting Services (Pty) Ltd is a forward-thinking and versatile South African based professional services and equipment supply company that excels in delivering innovative…” Source: RevenueBase Database · checked Sep 21, 2026
17	Sydwalt PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “SYDWALT (Pty) Ltd is an independent engineering Consulting firm, offering a broad range of professional services.” Source: RevenueBase Database · checked Sep 21, 2026
18	Single Desination Engineering	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “Single Destination Engineering, based in South Africa and Botswana, is a dynamic, innovative engineering consulting and design firm providing a broad range of engineering…” Source: RevenueBase Database · checked Sep 21, 2026
19	TCH Group	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	1-10	9 contacts →
	Indirect evidence “At TCH Group, we're on a mission to create a brighter, more sustainable future through innovative solutions.” Source: RevenueBase Database · checked Sep 21, 2026
20	Hypower Heavy Current Maintenance PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
21	Gibb Mining And Power PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “GIBB Power services extend across the electricity value chain.” Source: RevenueBase Database · checked Sep 21, 2026
22	Africa-One Consulting	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	8 contacts →
	Partial evidence “Africa-One Consulting and Research Pty Ltd trading as Africa-One Consulting was formed with initial focus on electrical engineering technology consulting with a vision to later…” Source: RevenueBase Database · checked Sep 21, 2026
23	ALT Energy Solutions Ec&i	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	7 contacts →
	Partial evidence “Alt Energy Solutions is a leading Electrical, Control, and Instrumentation (EC & I) Engineering, Procurement, and Construction (EPC) company, delivering turnkey solutions to the…” Source: RevenueBase Database · checked Sep 21, 2026
24	Synlec PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	1-10	6 contacts →
	Partial evidence “Electrical engineering consulting.” Source: RevenueBase Database · checked Sep 21, 2026
25	Thuthukani Electrical Control & Instrumentation PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	1-10	5 contacts →
	Partial evidence “Thuthukani Electrical Control & Instrumentation provides Electrical, Control & Instrumentation Engineering consulting and project management experience, a broad knowledge base…” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: energy infrastructure consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names energy infrastructure consulting firms.
Partial evidence: Its own public description names part of energy infrastructure consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 91 energy infrastructure consulting firms based in Johannesburg, South Africa

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Energy infrastructure consulting firms based in Johannesburg, South Africa at a glance

As of Sep 21, 2026

36.4%Verified-email coverage

12.4Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Johannesburg

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Email recency for this list is measured across the whole South Africa list rather than for Johannesburg, so it is reported there. Company counts and contact totals on this page are exact for Johannesburg, over 91 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among energy infrastructure consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Johannesburg, South Africa whose own description of what they do matches “energy infrastructure consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names energy infrastructure consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among energy infrastructure consulting firms, and records with no verified work email. Companies headquartered outside Johannesburg are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 410 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Energy infrastructure consulting firms by metro in South Africa

Energy infrastructure consulting firms in Johannesburg91
Energy infrastructure consulting firms in Cape Town75
Energy infrastructure consulting firms in Pretoria42

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names energy infrastructure consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many energy infrastructure consulting firms are there based in Johannesburg, South Africa?

RevenueBase identified 91 energy infrastructure consulting firms headquartered in Johannesburg, South Africa as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Consolidated Power Project PTY Ltd. In Business Rescue, headquartered in Johannesburg, tops this list with the largest team on record.

Which city has the most energy infrastructure consulting firms?

Johannesburg leads with 91 headquartered companies, followed by Cape Town (75) and Pretoria (42).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 410 verified decision-maker contacts tracked across these 91 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.